What amp contactor do I need for my Tempstar system?

The correct replacement for Tempstar model TNLS1215H — OEM 51307868500 | Ships Today is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Tempstar equipment which lists the model number TNLS1215H — OEM 51307868500 | Ships Today.

My AC clicks but the compressor does not turn on. What is wrong?

Clicking from the outdoor unit without the compressor starting usually means a worn contactor. The contactor is the relay that sends power to the compressor. When its contacts are pitted or worn, it clicks but cannot establish a solid electrical connection. Other symptoms: visible pitting or burn marks on the contactor face, AC works intermittently, or buzzing from the contactor.

Is this contactor compatible with Bryant or Payne systems too?

Many Tempstar parts are cross-compatible with Bryant and Payne systems since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across multiple brand labels with different model numbers. To verify cross-compatibility, check your Bryant or Payne equipment service manual for cross-compatible part numbers, or contact info@nationalhvacparts.com with your model number for confirmation.

Tempstar

Tempstar 4-Pole 20A 115V Contactor for TNLS1215H — OEM 51307868500 | Ships Today

Name: Tempstar 4-Pole 20A 115V Contactor for TNLS1215H — OEM 51307868500 | Ships Today
Brand: Tempstar
SKU: 51307868500-GEN
Price: 36.95 USD
Availability: InStock

SKU: 51307868500-GEN Brand: Tempstar

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

Overview

This genuine OEM contactor, part number 51307868500, is a 4-pole, 20-amp unit with a 115V coil built for the Tempstar TNLS1215H. The contactor is the electrically operated switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling. Over thousands of cycles the contacts pit, burn, and weld; the coil can also fail open or chatter. A failing contactor causes no-cool conditions, a humming or buzzing outdoor unit, a unit that won't shut off, or intermittent operation. Installing a fresh OEM contactor restores clean, reliable switching and protects the compressor from damaging voltage drop.

Specifications

Spec	Value
Part Number	51307868500
Type	Definite Purpose Contactor
Brand	Tempstar
Poles	4-Pole
Rating	20 Amps
Coil Voltage	115V
Fits Model	TNLS1215H
Fit	OEM Replacement

Compatibility

Engineered for the Tempstar TNLS1215H and shared ICP/Heil chassis that use the same 4-pole 20A 115V contactor. Confirm the pole count, amp rating, coil voltage, and printed part number against your existing contactor before ordering.

Installation Guide

Safety First — Disconnect power at the disconnect and breaker; verify zero voltage with a multimeter.
Access — Remove the outdoor unit service panel to expose the control area.
Document — Photograph every wire and terminal position before disconnecting anything.
Remove — Move wires one at a time to the new contactor, then unscrew and lift out the old contactor.
Install — Mount the new contactor and reconnect each wire to the matching terminal per your photo.
Test — Restore power and confirm the contactor pulls in on a cooling call and drops out cleanly.

Signs You Need a Replacement

Outdoor unit hums or buzzes but compressor/fan won't start
Burned, pitted, or welded contacts
Unit fails to shut off when the call ends
Intermittent cooling or chattering relay sound

Shipping & Returns

Ships same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

Tempstar 4-Pole 20A 115V Contact...

$36.95

Frequently Asked Questions

Does this Contactor fit my Tempstar TNLS1215H — OEM 51307868500 | Ships Today?

Yes. This is the factory-specified OEM contactor for the Tempstar TNLS1215H — OEM 51307868500 | Ships Today. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the contactor on my Tempstar TNLS1215H — OEM 51307868500 | Ships Today?

Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.

My AC clicks but the compressor won’t turn on. What’s wrong?

Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.

Is this contactor compatible with Bryant or Payne too?

Many Tempstar parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Tempstar contactor?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

Menu